Raush River adopted 22 February 1963 on 83D as labelled on BC map 3H, 1931 et seq, not "Raushuswap" as identified on earlier maps.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

The original name was Rivière au Shuswap, abbreviated as "R. au Shuswap" on Trutch's 1871 map of British Columbia [the text is compressed, and could easily be misinterpreted as RauShuswap.] Labelled "RauShuswap River" on Jorgensen's 1895 map of British Columbia. Labelled "Raush (Raushuswap) River" on BC map 3H, 1914, 1915, 1919 & 1923, following the Geographic Board of Canada suggestion that Raush be adopted, being an abbreviation for Rivière AU SHuswap, in place of Raushuswap, in itself a corrupted abbreviation and too long a name for such a small river. Ottawa file OBF 0025.

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

"The local name, Big Shuswap, conflicts with Shuswap River further south and appears on recent government maps as Raushwap or Rausch River (from Rivière au Shuswap). The adjacent creek to the south, now called Kiwa Creek, is known locally as Little Shuswap". (W.A.D. Munday, Canadian Alpine Journal, vol XV, 1925, p.132). [The government maps that Munday mentions, using the spellings Raushwap and/or Rausch, are not identified.]

Source: BC place name cards, or correspondence to/from BC's Chief Geographer or BC Geographical Names Office

Headwaters at 52 41 - 119 44 on 83D/12.

Source: Canadian Geographical Names Database, Ottawa